Patents Assigned to Kwangwoon University Industry-Academic Collaboration Foundation
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Patent number: 11967111Abstract: Proposed is a multi-view camera-based iterative calibration method for generation of a 3D volumetric model that performs calibration between cameras adjacent in a vertical direction for a plurality of frames, performs calibration while rotating with the results of viewpoints adjacent in the horizontal direction, and creates a virtual viewpoint between each camera pair to repeat calibration. Thus, images of various viewpoints are obtained using a plurality of low-cost commercial color-depth (RGB-D) cameras. By acquiring and performing the calibration of these images at various viewpoints, it is possible to increase the accuracy of calibration, and through this, it is possible to generate a high-quality real-life graphics volumetric model.Type: GrantFiled: May 27, 2021Date of Patent: April 23, 2024Assignee: KWANGWOON UNIVERSITY INDUSTRY-ACADEMIC COLLABORATION FOUNDATIONInventors: Young Ho Seo, Byung Seo Park
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Patent number: 11962777Abstract: An inverse quantization method is implemented by an inverse quantization device, the method configured for acquiring quantized coefficients, estimating a quantization parameter in quantization groups or quantization parameter prediction group units, generating an inverse quantization matrix for adaptive quantization, and generating transform coefficients from the quantized coefficients using the quantization parameter and the inverse quantization matrix.Type: GrantFiled: November 16, 2022Date of Patent: April 16, 2024Assignees: Hyundai Motor Company, Kia Corporation, Kwangwoon University Industry-Academic Collaboration FoundationInventors: Dong Gyu Sim, Sea Nae Park, Jong Seok Lee, Seung Wook Park, Wha Pyeong Lim
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Patent number: 11962775Abstract: An inverse quantization method is implemented by an inverse quantization device, the method configured for acquiring quantized coefficients, estimating a quantization parameter in quantization groups or quantization parameter prediction group units, generating an inverse quantization matrix for adaptive quantization, and generating transform coefficients from the quantized coefficients using the quantization parameter and the inverse quantization matrix.Type: GrantFiled: November 16, 2022Date of Patent: April 16, 2024Assignees: Hyundai Motor Company, Kia Corporation, Kwangwoon University Industry-Academic Collaboration FoundationInventors: Dong Gyu Sim, Sea Nae Park, Jong Seok Lee, Seung Wook Park, Wha Pyeong Lim
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Publication number: 20240119948Abstract: Provided is an encoding apparatus for integrally encoding and decoding a speech signal and a audio signal, and may include: an input signal analyzer to analyze a characteristic of an input signal; a stereo encoder to down mix the input signal to a mono signal when the input signal is a stereo signal, and to extract stereo sound image information; a frequency band expander to expand a frequency band of the input signal; a sampling rate converter to convert a sampling rate; a speech signal encoder to encode the input signal using a speech encoding module when the input signal is a speech characteristics signal; a audio signal encoder to encode the input signal using a audio encoding module when the input signal is a audio characteristic signal; and a bitstream generator to generate a bitstream.Type: ApplicationFiled: June 21, 2023Publication date: April 11, 2024Applicants: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE, Kwangwoon University Industry-Academic Collaboration FoundationInventors: Tae Jin LEE, Seung-Kwon BAEK, Min Je KIM, Dae Young JANG, Jeongil SEO, Kyeongok KANG, Jin-Woo HONG, Hochong PARK, Young-Cheol PARK
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Publication number: 20240107032Abstract: The present invention relates to an image encoding and decoding technique, and more particularly, to an image encoder and decoder using unidirectional prediction. The image encoder includes a dividing unit to divide a macro block into a plurality of sub-blocks, a unidirectional application determining unit to determine whether an identical prediction mode is applied to each of the plurality of sub-blocks, and a prediction mode determining unit to determine a prediction mode with respect to each of the plurality of sub-blocks based on a determined result of the unidirectional application determining unit.Type: ApplicationFiled: December 7, 2023Publication date: March 28, 2024Applicants: Electronics and Telecommunications Research Institute, Kwangwoon University Industry-Academic Collaboration Foundation, University-Industry Cooperation Group of Kyung Hee UniversityInventors: Hae Chul CHOI, Se Yoon JEONG, Sung-Chang LIM, Jin Soo CHOI, Jin Woo HONG, Dong Gyu SIM, Seoung-Jun OH, Chang-Beom AHN, Gwang Hoon PARK, Seung Ryong KOOK, Sea-Nae PARK, Kwang-Su JEONG
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Patent number: 11943441Abstract: An inverse quantization method is implemented by an inverse quantization device, the method configured for acquiring quantized coefficients, estimating a quantization parameter in quantization groups or quantization parameter prediction group units, generating an inverse quantization matrix for adaptive quantization, and generating transform coefficients from the quantized coefficients using the quantization parameter and the inverse quantization matrix.Type: GrantFiled: November 16, 2022Date of Patent: March 26, 2024Assignees: Hyundai Motor Company, Kia Corporation, Kwangwoon University Industry-Academic Collaboration FoundationInventors: Dong Gyu Sim, Sea Nae Park, Jong Seok Lee, Seung Wook Park, Wha Pyeong Lim
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Patent number: 11930180Abstract: A method and an apparatus are configured for intra prediction coding of video data. An apparatus for decoding video data includes: a decoding unit which obtains, from a bitstream, information on a luma prediction mode and information on a chroma prediction mode of a current coding block; and an intra prediction unit which generates luma prediction samples and chroma prediction samples of the current coding block. The intra prediction unit derives a luma intra prediction type and a luma intra prediction mode of the current coding block on the basis of the information on the luma prediction mode, and determines a chroma intra prediction mode of the current coding block on the basis of the luma intra prediction type and the luma intra prediction mode of the current coding block, and the information on the chroma prediction mode.Type: GrantFiled: August 6, 2020Date of Patent: March 12, 2024Assignees: Hyundai Motor Company, Kia Motors Corporation, Kwangwoon University Industry-Academic Collaboration FoundationInventors: Dong Gyu Sim, Joo Hyung Byeon, Sea Nae Park, Jun Taek Park, Seung Wook Park, Wha Pyeong Lim
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Patent number: 11922962Abstract: A Unified Speech and Audio Codec (USAC) that may process a window sequence based on mode switching is provided. The USAC may perform encoding or decoding by overlapping between frames based on a folding point when mode switching occurs. The USAC may process different window sequences for each situation to perform encoding or decoding, and thereby may improve a coding efficiency.Type: GrantFiled: August 25, 2022Date of Patent: March 5, 2024Assignees: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE, KWANGWOON UNIVERSITY INDUSTRY-ACADEMIC COLLABORATION FOUNDATIONInventors: Seungkwon Beack, Tae Jin Lee, Min Je Kim, Kyeongok Kang, Dae Young Jang, Jeongil Seo, Jin Woo Hong, Chieteuk Ahn, Ho Chong Park, Young-cheol Park
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Publication number: 20240073416Abstract: The present invention relates to an apparatus and method for encoding and decoding an image by skip encoding. The image-encoding method by skip encoding, which performs intra-prediction, comprises: performing a filtering operation on the signal which is reconstructed prior to an encoding object signal in an encoding object image; using the filtered reconstructed signal to generate a prediction signal for the encoding object signal; setting the generated prediction signal as a reconstruction signal for the encoding object signal; and not encoding the residual signal which can be generated on the basis of the difference between the encoding object signal and the prediction signal, thereby performing skip encoding on the encoding object signal.Type: ApplicationFiled: November 6, 2023Publication date: February 29, 2024Applicants: Electronics and Telecommunications Research Institute, Kwangwoon University Industry-Academic Collaboration Foundation, Universily-lndustry Cooperation Group of Kyung Hee UniversityInventors: Sung Chang LIM, Ha Hyun LEE, Se Yoon JEONG, Hui Yong KIM, Suk Hee CHO, Jong Ho KIM, Jin Ho LEE, Jin Soo CHOI, Jin Woong KIM, Chie Teuk AHN, Dong Gyu SIM, Seoung Jun OH, Gwang Hoon PARK, Sea Nae PARK, Chan Woong JEON
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Patent number: 11914145Abstract: Disclosed in the present invention is a floating hologram system. The floating hologram system includes a diffuser configured to form a projection image using light beams transmitted from an image transmitter and diffuse the formed image, and a holographic optical element on which the image diffused from the diffuser is incident and which generates a virtual image floating at a position a predetermined distance therefrom and has a convex lens characteristic. A distance between the diffuser and the holographic optical element is determined based on a focal length of the holographic optical element and a distance from the holographic optical element to the virtual image.Type: GrantFiled: December 10, 2020Date of Patent: February 27, 2024Assignee: KWANGWOON UNIVERSITY INDUSTRY-ACADEMIC COLLABORATION FOUNDATIONInventors: Seung Hyun Lee, Lee Hwan Hwang, Jae Hyun Lee, Sung Jae Ha, Soon Chul Kwon, Kwang Pyo Hong
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Patent number: 11910023Abstract: A method and an apparatus for parallel encoding and decoding of moving picture data are provided. The method includes decoding, from a bitstream, a syntax element indicating that a picture can be decoded using wavefront parallel processing and decoding encoded data of the picture. The step of decoding encoded data of the picture includes for a first coding block of a current CTU row encoded in a palette mode, predicting a palette table for the first coding block by using palette data from a first CTU of a previous CTU row and decoding the first coding block in the palette mode using the palette table predicted for the first coding block.Type: GrantFiled: December 11, 2022Date of Patent: February 20, 2024Assignees: Hyundai Motor Company, Kia Corporation, Kwangwoon University Industry-Academic Collaboration FoundationInventors: Dong Gyu Sim, Sea Nae Park, Joo Hyung Byeon, Seung Wook Park, Wha Pyeong Lim
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Publication number: 20240056587Abstract: The present invention relates to a method and an apparatus for interlayer prediction, and the method for interlayer prediction, according to the present invention, comprises the steps of: deciding whether to apply an interlayer prediction to an enhancement layer; and performing a prediction on a current block of the enhancement layer based on reference information that is generalized and generated from a reference picture, which is decoded, of a reference layer, when the interlayer prediction is applied, wherein the reference layer information can be encoding information of a reference block, which corresponds to a current block of the enhancement layer, from the reference layer, and residual information.Type: ApplicationFiled: October 23, 2023Publication date: February 15, 2024Applicants: Electronics and Telecommunications Research Institute, KWANGWOON UNIVERSITY INDUSTRY-ACADEMIC COLLABORATION FOUNDATIONInventors: Ha Hyun LEE, Jung Won KANG, Jin Soo CHOI, Jin Woong KIM, Dong Gyu SIM, Hyo Min CHOI, Jung Hak NAM
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Patent number: 11902591Abstract: A method and an apparatus for parallel encoding and decoding of moving picture data are provided. The method includes decoding, from a bitstream, a syntax element indicating that a picture can be decoded using wavefront parallel processing and decoding encoded data of the picture. The step of decoding encoded data of the picture includes for a first coding block of a current CTU row encoded in a palette mode, predicting a palette table for the first coding block by using palette data from a first CTU of a previous CTU row and decoding the first coding block in the palette mode using the palette table predicted for the first coding block.Type: GrantFiled: December 11, 2022Date of Patent: February 13, 2024Assignees: Hyundai Motor Company, Kia Corporation, Kwangwoon University Industry-Academic Collaboration FoundationInventors: Dong Gyu Sim, Sea Nae Park, Joo Hyung Byeon, Seung Wook Park, Wha Pyeong Lim
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Patent number: 11895337Abstract: A method and an apparatus for parallel encoding and decoding of moving picture data are provided. The method includes decoding, from a bitstream, a syntax element indicating that a picture can be decoded using wavefront parallel processing and decoding encoded data of the picture. The step of decoding encoded data of the picture includes for a first coding block of a current CTU row encoded in a palette mode, predicting a palette table for the first coding block by using palette data from a first CTU of a previous CTU row and decoding the first coding block in the palette mode using the palette table predicted for the first coding block.Type: GrantFiled: December 11, 2022Date of Patent: February 6, 2024Assignees: Hyundai Motor Company, Kia Corporation, Kwangwoon University Industry-Academic Collaboration FoundationInventors: Dong Gyu Sim, Sea Nae Park, Joo Hyung Byeon, Seung Wook Park, Wha Pyeong Lim
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Patent number: 11889120Abstract: A method and an apparatus for parallel encoding and decoding of moving picture data are provided. The method includes decoding, from a bitstream, a syntax element indicating that a picture can be decoded using wavefront parallel processing and decoding encoded data of the picture. The step of decoding encoded data of the picture includes for a first coding block of a current CTU row encoded in a palette mode, predicting a palette table for the first coding block by using palette data from a first CTU of a previous CTU row and decoding the first coding block in the palette mode using the palette table predicted for the first coding block.Type: GrantFiled: December 11, 2022Date of Patent: January 30, 2024Assignees: Hyundai Motor Company, Kia Corporation, Kwangwoon University Industry-Academic Collaboration FoundationInventors: Dong Gyu Sim, Sea Nae Park, Joo Hyung Byeon, Seung Wook Park, Wha Pyeong Lim
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Patent number: 11882292Abstract: The present invention relates to an image encoding and decoding technique, and more particularly, to an image encoder and decoder using unidirectional prediction. The image encoder includes a dividing unit to divide a macro block into a plurality of sub-blocks, a unidirectional application determining unit to determine whether an identical prediction mode is applied to each of the plurality of sub-blocks, and a prediction mode determining unit to determine a prediction mode with respect to each of the plurality of sub-blocks based on a determined result of the unidirectional application determining unit.Type: GrantFiled: January 31, 2022Date of Patent: January 23, 2024Assignees: Electronics and Telecommunications Research Institute, Kwangwoon University Industry-Academic Collaboration Foundation, University-Industry Cooperation Group of Kyung Hee UniversityInventors: Hae Chul Choi, Se Yoon Jeong, Sung-Chang Lim, Jin Soo Choi, Jin Woo Hong, Dong Gyu Sim, Seoung-Jun Oh, Chang-Beom Ahn, Gwang Hoon Park, Seung Ryong Kook, Sea-Nae Park, Kwang-Su Jeong
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Publication number: 20240015308Abstract: A method for decoding a target block which has been encoded in an intra block copy (IBC) mode. The method comprises: determining a partition type of the target block by decoding at least one of a first syntax element for determining a reference area to refer to in order to partition the target block and a second syntax element related to the partition type of the target block; decoding block vector information regarding one or more sub-blocks, which have been partitioned from the target block according to the partition type, and determining a block vector corresponding to each of the sub-blocks by using the block vector information; and predicting the target block by generating and combining one or more prediction blocks from a current picture in which the target block is located by using the block vector corresponding to each of the sub-blocks.Type: ApplicationFiled: November 23, 2021Publication date: January 11, 2024Applicants: HYUNDAI MOTOR COMPANY, KIA CORPORATION, KWANGWOON UNIVERSITY INDUSTRY-ACADEMIC COLLABORATION FOUNDATIONInventors: Sea Nae Park, Joo Hyung Byeon, Dong Gyu Sim, Seung Wook Park
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Publication number: 20240007623Abstract: A block splitting structure is disclosed for efficient prediction and transform, and a method and an apparatus are disclosed for video encoding and decoding using the block Splitting structure. In particular, the method and apparatus are capable of splitting a video data block into two regions or blocks including an L-shaped block and a rectangular block and thus efficiently perform prediction on each block.Type: ApplicationFiled: November 24, 2021Publication date: January 4, 2024Applicants: HYUNDAI MOTOR COMPANY, KIA CORPORATION, KWANGWOON UNIVERSITY INDUSTRY-ACADEMIC COLLABORATION FOUNDATIONInventors: Joo Hyung Byeon, Sea Nae Park, Dong Gyu Sim, Seung Wook Park
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Publication number: 20240001140Abstract: A photodynamic therapy and microwave therapy fusion system is provided. The system includes photosensitizers transplanted or attached to the biological tissues of a site in which cancer develops and made to have specific indirect energy band gaps so as to perform photodynamic therapy for the site in which the cancer develops; and a microwave assisted photodynamic therapy (MWAPDT) controller connected to a personal computer (PC) and adapted to allow a microwave frequency of 500 MHz to 10 GHz emitted from a microwave probe or an optic ray emitted from a fiber optic probe or a LED light of a wavelength of 300 to 1,000 nm from a micro LED of a LED probe to be irradiated onto the biological tissues of the site in which the cancer develops, to which the photosensitizers are transplanted or attached, so as to perform microwave therapy for the site in which the cancer develops.Type: ApplicationFiled: April 17, 2023Publication date: January 4, 2024Applicant: KWANGWOON UNIVERSITY INDUSTRY-ACADEMIC COLLABORATION FOUNDATIONInventors: Nam-Young KIM, Eun-Seong KIM, Maxim Alexandrovich PUGACHEVSKII
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Publication number: 20240007656Abstract: A method and an apparatus for video coding using segmentation are disclosed. The video coding method and the apparatus segment a current picture to generate objects. The method and apparatus also manage information related to a memory, a filter, and a quantization parameter for each of the objects to enhance encoding efficiency in encoding or decoding of the objects existing in the current picture.Type: ApplicationFiled: September 13, 2023Publication date: January 4, 2024Applicants: HYUNDAI MOTOR COMPANY, KIA CORPORATION, KWANGWOON UNIVERSITY INDUSTRY-ACADEMIC COLLABORATION FOUNDATIONInventors: Dong Gyu Sim, Jun Taek Park, Han Sol Choi, Seung Wook Park